6 Way wall touch switch

This weekend I've been busy with a prototype for a touch wall switch.
So far is going pretty well and everything seems to work.
I still need to integrate it with MySensors, but I hope this will be the easiest part.
The only problem I found is with the sensitivity of the touch sensors when connected to external power.
It works perfectly when using USB power, but not quite right then using AC power.

Here's how it looks so far. Remember this is just a proof of concept and many things where just do as I go and probably will be a better way to do it.

Any suggestions / comments will be greatly appreciated.

This is the front plate made with a 2mm methacrylate plastic, with a printed paper behind.

This is a rough integration of the code with MySensors.
It sends messages back and forth, so if a button is touched it turns on the corresponding device on the controller and if the switch is turned on the controller, the touch leds are updated accordingly

@quocanhcgd
I'll post the project when I finish the PCB and everything is a bit more mature.
I already uploaded the sketch I used here.
I made it with a max7219 led driver but you could also use a shift register to control the leds with minimal modifications

I also built a 6way wall switch. It does not have lights but is battery powered and very well documented. It is kind of rocket science because it has a 3d printed housing and a self etched pcb but maybe it helps anyway at least for the (very easy) source code: